Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Slippery elm bark (Ulmus rubra) has a long history of use in North American traditional medicine, particularly among Indigenous peoples and early settlers. It is most commonly known for its internal soothing properties, especially in the treatment of sore throats, coughs, and digestive complaints. The inner bark contains mucilage—a gel-like substance that, when mixed with water, becomes slippery and soothing. Traditionally, this mucilage has also been applied topically to the skin as a poultice to help relieve inflammation, irritation, and minor wounds. This traditional use is extended to skin conditions such as rashes and hives, where slippery elm is believed to form a protective layer, soothe irritation, and promote healing. However, scientific evidence supporting the efficacy of slippery elm bark for rashes and hives is limited. While the mucilage certainly provides a soothing effect that may offer symptomatic relief, there are no high-quality clinical trials or robust pharmacological studies that validate its effectiveness specifically for these skin conditions. Most references to its topical use are derived from historical texts and folk medicine rather than modern research. Thus, while slippery elm bark is traditionally used for rashes and hives, this use is supported primarily by anecdotal and historical evidence rather than by scientific validation.

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